Producing glossy or silky effects on fabrics and other material.



UNITED sTArns PATENT oFFioE.

LEON LILIENFELD, OF VIENNA, AUSTRIA-HUNGARY.

PRODUCING GLOSSY OR SILKY EFFECTS ON FABRICS AND OTHER MATERIAL.

Specification of Letters Yatent.

Patented Nov. 17, 1908.

Application filed October 2, 1906. I Serial No. 337,103.

To all whom it may concern:

Be it known that I, LEON Lnnnxrnno, a subject of the Emperor of Austria-Hungary, and a resident of Vienna, in the Empire of Austria-Hungary, VIII Zeltgasse l, have in vented Improvements in Producing Glossy or Silky Effects on Fabrics or other Material, of which the following is a specification.

The treatment of certain materials, such as fabrics, paper and the like, with cellulose or its derivatives, such as nitro cellulose. acetyl cellulose and viscose, in order to produce a silky or glossy appearance. is well known. In certain cases these dressing or fixing means are mixed with pigments which increase the effect to a great extent. For instance, in the process disclosed in U. S. A. Patent #8347 39 (upon which my present invention is an improvement,) these dressing or fixing means are mixed with mica, by which a highly silky or glossy effect is produced. The material coated or printed with such dressing or fixing means, either alone or mixed with pigments (especially mica) are further operated upon, in many instances, by rollers having a rippled or other irregular surface, in order to increase or modify the result to be obtained.

I have found that I can further increase to a great. extent the effect obtained by a substance of the cellulose group and mica, such as cellulose or its derivatives (and especially viscose) by previously treating the material with an acyclic carbon compound such as fats, free fatty acids, paraffin, resin, esters of-the higher alcohols (for instance, acetyl palmitic ester) or derivatives of these substances (for instance, soaps, esters and the like) or, in short, with waxy, resinous or fatty substafizes either alone or mixed with each other.

I have further discovered that by my im proved process still other technical advantages are obtained over the heretofore known processes.

If suitable material (fabrics, paper and the like) be treated or imprinted with solutions of cellulose or its derivatives, such as nitro cellulose, acetyl cellulose and especially viscose, either alone or in mixture with pigment-s (particularly with mica) and the product thus obtained be given an effect or pattern by treating it with suitably formed rollers, ordinary or goffering presses, the effect or pattern thus produced is not waterproof. ticeable when the product is to be fastened to some object by means of glue. such fastening a large part and in many cases even most of the effect of the pattern is lost, without reappearing when the glue is dried. On accountof this deficiency it is almost impossible to use the product thus obtained for book binding, card decoration. wall papers or the like. The effect of the pattern is also considerably impaired when the product is subject to the influence of water and it is therefore difficult and fre quently impossible to use it for clothing and many other purposes. All these disadvantages are entirely overcome by my improvement.

The material previously treated in accordance with my process and afterward coated or imprinted with-cellulose or its derivatives (particularly viscose) either alone or mixed with pigments, and when afterward pressed or goffered, will not lose its effect on either the front or the back of the material under the influence of water or adhesives.

As a further technical improvement, I may mention that the objects produced by my process are softer and more agreeable to the touch than those produced by the processes heretofore employed.

The present process may be carried out in various ways. The material may be treated either with the solutions of the fats, free 'afiins, resins, esters of fluhigher alcohols (ethyl palmitic ester or the like) or with derivatives thereof (such as soaps and esters) or, in short, with waxy. resinous or fatty substances in suitable solvents. The material may also be treated with watery or other emulsions of waxy. resinous or fatty substances. Furthermore. the waxy, resinous or fatty substances may also be used alone (without a solvent) for this purpose, for instance, in molten state.

The material may be dressed on one side or on both sides by h..nd or by suitable machinery. For imprinting, the dressing may be done locally in any well-known manner. In each of these, waxy, fatty or resinous substances may be used either alone or in mixture with one or more of the others. To the substances mentioned may also be added other adhesive, dressing or fixing means, such as starch, glue, rubber, caoutchouc, gutta-percha and the like, or to the subfatty acids, pa

This deficiency is particularly 110- During stances mentioned may be added substances which will render them insoluble or which may have a tanning effect, as'for instance,

lutions may also be added an emollient, such as castor oil. After 'the drying process, which is preferably carried out in the presence of heat, the material is coated with a mixture of a cellulose derivative (particularly viscose) either alone or mixed with a pigment such as is disclosed, for instance, in the German Patent No. ,.175,664, and thereupon finished in well-known manner.

2. Paraffin, stearin, wax or a mixture thereof is melted and the textile or paper is coated with it and dried. The further treatment is the same as set forth Example 1.

3. A watery 10 to 20 per cent. emulsion of a waxy substance roduced in well-known manner with the aid of soda is applied to the fabric or paper either by hand or by means of suitable machines. .The further treatment may be as set forth in Examples l. and 2. To these emulsions one may add other adhesives, such as starch, wheat flour, various kinds of rubber, glue and the like. Furthermore, any emollient, such as glycerin, castor oil or the like may be added to these emulsions.

The articles treated in accordance with the above described examples. have the advantages that the pattern will be unaffected by the application of adhesives, the silky luster is increased and the pattern can produced as the surface is no longer brittle and the rollers or dies can sink deeper into the coating and leave a sharper better look ing design.

I claim.

- 1. A coating'consisting of a substance of the cellulose group and mica in combination with an acyclic carbon compound having a mollifying influence on the coating and having water repellent properties.

2. The process of treating surfaces; which comprises preliminarily treating the surface with a water repellent acyclic carbon compound and subsequently applying a coating consisting of a substance of the cellulose group and mica.

3. The process of treating surfaces, which comprises preliminarily treating the surface with a mollifying and water repellent acyclic carbon compound, and subsequently applying a coating consisting of a substance of the cellulose group and mica.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

- LEON LILIENFELD. Witnesses:

WENZEL RUDOLF LINKE, ALvns'ro S. Hoenn.

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